Mods / upgrades to an A&H Mixwizard?

[centurymantra]

I''m planning on picking up a new console for mixing at some point in the near future...probably one of the new Toft ATB boards. In the meantime, I have been employing an Allen & Heath 16 channel Mixwizard. I don't really know much about the technical side of these things and would have someone else handle the work, but if there were any worthwhile mods that could be performed on a board like this, I might consider it. Especially if I decide to hold off for a little while on a new board. It's actually a decent little mixer and certainly appropriate for my project studio. I like the EQs, don't use the pres as it serves as a line mixer and is clean enough for this purpose. The summing, however, seems a little lacking and this is where I'd really like to do some mods if possible. Maybe some power supply mods...?

Anyone got some ideas for me?